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c. T. APPLETON. Bleaching Apparatus.

No. 12.709;` Patented Apr. I7, 1855.

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CHARLES T. APPLTON, or

i Siiieciiicatiori forming1 part `of Letters Patent To all whom t may concern: u Be it` known that 1,.; CHARLES T. APPLE- Vjroii,` of Roxbury, in thecounty ofNorfolk `and State ofMassachusetts, have invented certain new andluseful ImprovementsV in the Art of Bleaching, ofiwhich the following is full, clear, andmexact description, reference being had to the annexed drawings,

" making part of this specification, in which- Y Figure 1 is ai plan of the `apparatus em- "ployed, Fig. 2a`vertical section upon the "eline A, `A,.of Fig.` l.

The natu're of my invention consists in `tains the goods whileithey` are undergoing the various operations inthe process of perform these `operations with great dispatchand with far less labor than has here-` `toforebeen required for the purpose; `To enable othersf skilled in the art to make use of my `invention Iwill proceed to describe the `manner in which I have carried it out. i

`B is `the vat which receives the goods, a perforated strainer orfalse bottom C, pre- "the vat. `This vatis closed by a tight fitting cover `E suitably secured` by meansof` screws orf otherwise. a .is an,` outlet pipe and cock #from the bottom of tliisuvessel. i y D is a branched pipe having two cocks b and c, the (one beiiigin communication I, K,- L, are vessels for the purpose of ,l containing` "chlorin, water, and soda, the i waterbeing used to temper the strength of the" other solutionsas may be required. The pipesfz', 7:; and Z, alsolfurnished with cocks a as seen in thefdrawings, establish a comexhausting the air fronithe'vat which con-` bleaching bywhieh` means `I am enabled to i i venting them from falling to the bottom of with a head of waterfto be used in the` @wml-momes;

RoxBRY; Massacnusnr'rs.`

` BLnacniiic ArrAnairus. e

No. ieoa;uatedfaprni', 1`s55; Reissued May 22, z 1855. 1 i `l i vmunication between these vessels and the vessel,` B. uA

air pump H to the vessel F.

"It is evident that the various vessels should be made of materials calculated to resist the action of the various agents employed, those from which the atmosphere is to be exhausted being of a suitable strength to sustain the outward pressure of the atmosphere.

vat B, cold water is admitted through the pipe D, and cock c, in sufficient quantity to cover them. The air pump is then put in operation and the air is exhausted from the `vessel F. The cock n, is then opened and the airis exhausted from the vessel B, which causes the globules of air within the pores o-f the goods to expand and escape. The atmosphere is then admitted and the liquid is forced by the pressure of the atmo-sphere into the pores of the goods, left vacant by the expansion of the air. The water is then heated and the goods are allowed to sleep.

the following manner. The air is exhausted from the vessels F and Band the cock fm, being closed to prevent the admission of liquid to theair pump thek cock c, is opened and water is permitted to How through the goodsinto the vessels F and B. The cocks e and a are then opened and the water is permitted toflow from the vessels F and B. This operation is repeated. until the water runs from the goods perfectly clear. `This I have found to be a most rapid economical andeiiicacious method of washing, the exhausting of the atmosphere freeing the fibers and pores of the goods of the globules of air which they contain, and which prevent the ready admission of the water. Alkali is then introduced and the receiver of bringing the liquid into more immediate contact with the fibers of the goods. The goods are then boiled in the alkali by a at 'a temperature below 212 if the air be exhausted from the vessel. The alkali being run off and waterV introduced, the goods are thoroughly washed as before. The chlorin solution `isf then admitted to the goods, and `the air is again exhausted. The sour is m, is a cock ithepipeleadingfromv the Operation: The goods being placed in the The goodsare then thoroughly washed inv steam worm or otherwise which may be doneA is again exhausted for the purpose as before t rat-us for exhausting the air therefrom, and

the necessary vessels for containing the 15 liquids used in the process of bleaching, whereby the various steps may be performed in a much shorter space of time than has heretofore been required, and Without removing the goods from the Vat, substan- 20 tially as herein set forth.

C. T. APPLETON.

Witnesses:

SAM. COOPER, JOHN S. GLOW.

[FIRST PRINTED 1913.] 

